Minidoka weather by month
What a typical year looks like in Minidoka, Idaho: average highs and lows, rain and snow, and the warmest and coldest days on record. Normals are the 1991–2020 averages at Minidoka Dam, 9 km from Minidoka; records cover 1947–2026.
The year at a glance
- Precipitation a year
- 9.8 in249 mm
- Snow a year
- 21 in52 cm
- Last spring freeze
- May 19
- First fall freeze
- Sep 30
- Heating degree days
- 6,485
- Cooling degree days
- 541
Freeze dates are medians (half of years earlier, half later). Degree days use a 65°F base; HVAC design temperatures here are −1°−18° (heating, 99%) and 99°37° (cooling, 1%).
Month by month
Minidoka in January
Highs average 37°3° and lows 18°−8°, with 1.2 in29 mm of precipitation and 7 in17 cm of snow in a typical January.
- Record high
- 65°18° (2003)
- Record low
- −41° (1962)
- Heating degree days
- 1161
- Cooling degree days
- 0
Minidoka in February
Highs average 42°6° and lows 22°−6°, with 0.76 in19 mm of precipitation and 4 in11 cm of snow in a typical February.
- Record high
- 69°21° (1995)
- Record low
- −29°−34° (1985)
- Heating degree days
- 928
- Cooling degree days
- 0
Minidoka in March
Highs average 53°12° and lows 28°−2°, with 0.85 in22 mm of precipitation and 1.2 in3 cm of snow in a typical March.
- Record high
- 82°28° (2026)
- Record low
- −7°−22° (1985)
- Heating degree days
- 766
- Cooling degree days
- 0
Minidoka in April
Highs average 60°16° and lows 33°0°, with 0.99 in25 mm of precipitation and 0.5 in1.3 cm of snow in a typical April.
- Record high
- 94°34° (2012)
- Record low
- 12°−11° (2023)
- Heating degree days
- 558
- Cooling degree days
- 1
Minidoka in May
Highs average 70°21° and lows 41°5°, with 1.3 in34 mm of precipitation in a typical May.
- Record high
- 100°38° (2003)
- Record low
- 15°−9° (1967)
- Heating degree days
- 306
- Cooling degree days
- 13
Minidoka in June
Highs average 79°26° and lows 48°9°, with 0.72 in18 mm of precipitation in a typical June.
- Record high
- 105°41° (2013)
- Record low
- 24°−4° (2011)
- Heating degree days
- 114
- Cooling degree days
- 69
Minidoka in July
Highs average 89°32° and lows 54°12°, with 0.16 in4.1 mm of precipitation in a typical July.
- Record high
- 108°42° (2002)
- Record low
- 31°−1° (2005)
- Heating degree days
- 15
- Cooling degree days
- 222
Minidoka in August
Highs average 88°31° and lows 52°11°, with 0.33 in8.4 mm of precipitation in a typical August.
- Record high
- 105°41° (1990)
- Record low
- 31°−1° (2005)
- Heating degree days
- 24
- Cooling degree days
- 188
Minidoka in September
Highs average 78°26° and lows 44°7°, with 0.68 in17 mm of precipitation in a typical September.
- Record high
- 103°39° (2022)
- Record low
- 19°−7° (1965)
- Heating degree days
- 160
- Cooling degree days
- 46
Minidoka in OctoberThis month
Highs average 64°18° and lows 34°1°, with 0.78 in20 mm of precipitation and 0.7 in1.8 cm of snow in a typical October.
- Record high
- 97°36° (2010)
- Record low
- −8°−22° (2019)
- Heating degree days
- 486
- Cooling degree days
- 2
Minidoka in November
Highs average 49°10° and lows 26°−4°, with 0.86 in22 mm of precipitation and 2.6 in6.6 cm of snow in a typical November.
- Record high
- 79°26° (2012)
- Record low
- −19°−28° (2010)
- Heating degree days
- 825
- Cooling degree days
- 0
Minidoka in December
Highs average 37°3° and lows 19°−7°, with 1.2 in30 mm of precipitation and 5 in12 cm of snow in a typical December.
- Record high
- 67°19° (1999)
- Record low
- −26°−32° (1990)
- Heating degree days
- 1142
- Cooling degree days
- 0